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Allow -explicit-swift-module-map-file without full explicit module build #39887

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Merged
merged 1 commit into from
Dec 6, 2021
Merged

Allow -explicit-swift-module-map-file without full explicit module build #39887

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6 changes: 4 additions & 2 deletions lib/Frontend/Frontend.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -556,15 +556,17 @@ bool CompilerInstance::setUpModuleLoaders() {
// If implicit modules are disabled, we need to install an explicit module
// loader.
bool ExplicitModuleBuild = Invocation.getFrontendOptions().DisableImplicitModules;
if (ExplicitModuleBuild) {
if (ExplicitModuleBuild || !Invocation.getSearchPathOptions().ExplicitSwiftModuleMap.empty()) {
auto ESML = ExplicitSwiftModuleLoader::create(
*Context,
getDependencyTracker(), MLM,
Invocation.getSearchPathOptions().ExplicitSwiftModuleMap,
IgnoreSourceInfoFile);
this->DefaultSerializedLoader = ESML.get();
Context->addModuleLoader(std::move(ESML));
} else {
}

if (!ExplicitModuleBuild) {
if (MLM != ModuleLoadingMode::OnlySerialized) {
// We only need ModuleInterfaceLoader for implicit modules.
auto PIML = ModuleInterfaceLoader::create(
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21 changes: 21 additions & 0 deletions test/ScanDependencies/can_import_with_map_and_implicit.swift
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@@ -0,0 +1,21 @@
// RUN: %empty-directory(%t)
// RUN: mkdir -p %t/clang-module-cache
// RUN: mkdir -p %t/inputs
// RUN: mkdir -p %t/barinputs
// RUN: echo "public func foo() {}" >> %t/foo.swift
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/inputs/Foo.swiftmodule -emit-module-doc-path %t/inputs/Foo.swiftdoc -emit-module-source-info -emit-module-source-info-path %t/inputs/Foo.swiftsourceinfo -module-cache-path %t.module-cache %t/foo.swift -module-name Foo
// RUN: echo "public func bar() {}" >> %t/bar.swift
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/barinputs/Bar.swiftmodule -emit-module-doc-path %t/barinputs/Bar.swiftdoc -emit-module-source-info -emit-module-source-info-path %t/barinputs/Bar.swiftsourceinfo -module-cache-path %t.module-cache %t/bar.swift -module-name Bar

// RUN: echo "[{" > %/t/inputs/map.json
// RUN: echo "\"moduleName\": \"Foo\"," >> %/t/inputs/map.json
// RUN: echo "\"modulePath\": \"%/t/inputs/Foo.swiftmodule\"," >> %/t/inputs/map.json
// RUN: echo "\"docPath\": \"%/t/inputs/Foo.swiftdoc\"," >> %/t/inputs/map.json
// RUN: echo "\"sourceInfoPath\": \"%/t/inputs/Foo.swiftsourceinfo\"," >> %/t/inputs/map.json
// RUN: echo "\"isFramework\": false" >> %/t/inputs/map.json
// RUN: echo "}]" >> %/t/inputs/map.json

// RUN: not %target-swift-frontend -typecheck %s -explicit-swift-module-map-file %t/inputs/map.json -disable-implicit-swift-modules
// RUN: %target-swift-frontend -typecheck %s -explicit-swift-module-map-file %t/inputs/map.json -I %t/barinputs
import Foo
import Bar